A Note on the Baroclinic Instability of General Time-Dependent Basic Fields of the Eady TypeSource: Journal of the Atmospheric Sciences:;1971:;Volume( 028 ):;issue: 005::page 808Author:Hart, J. E.
DOI: 10.1175/1520-0469(1971)028<0808:ANOTBI>2.0.CO;2Publisher: American Meteorological Society
Abstract: The Eady problem concerning the stability of quasi-geostrophic baroclinic flows which have uniform vertical shear is generalized to include time-dependent basic flows. By means of a simple transformation an exact solution can be obtained. The instability of the flow, in the sense of boundedness as t ? ∞, is determined by the usual Eady criterion derived for steady basic flows, but the growth rates can be significantly enhanced or diminished. In the special case of purely periodic time dependence, the flow is always stable in the above sense.
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| contributor author | Hart, J. E. | |
| date accessioned | 2017-06-09T14:15:54Z | |
| date available | 2017-06-09T14:15:54Z | |
| date copyright | 1971/07/01 | |
| date issued | 1971 | |
| identifier issn | 0022-4928 | |
| identifier other | ams-15989.pdf | |
| identifier uri | http://onlinelibrary.yabesh.ir/handle/yetl/4151721 | |
| description abstract | The Eady problem concerning the stability of quasi-geostrophic baroclinic flows which have uniform vertical shear is generalized to include time-dependent basic flows. By means of a simple transformation an exact solution can be obtained. The instability of the flow, in the sense of boundedness as t ? ∞, is determined by the usual Eady criterion derived for steady basic flows, but the growth rates can be significantly enhanced or diminished. In the special case of purely periodic time dependence, the flow is always stable in the above sense. | |
| publisher | American Meteorological Society | |
| title | A Note on the Baroclinic Instability of General Time-Dependent Basic Fields of the Eady Type | |
| type | Journal Paper | |
| journal volume | 28 | |
| journal issue | 5 | |
| journal title | Journal of the Atmospheric Sciences | |
| identifier doi | 10.1175/1520-0469(1971)028<0808:ANOTBI>2.0.CO;2 | |
| journal fristpage | 808 | |
| journal lastpage | 809 | |
| tree | Journal of the Atmospheric Sciences:;1971:;Volume( 028 ):;issue: 005 | |
| contenttype | Fulltext |